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doc-src/Tutorial/Misc/natsum
author wenzelm
Wed, 29 Sep 1999 13:54:31 +0200
changeset 7640 6b7daae5d316
parent 5377 efb799c5ed3c
permissions -rw-r--r--
added witness_sorts, univ_witness; removed nonempty_sort;
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consts sum :: nat => nat
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primrec
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"sum 0 = 0"
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"sum (Suc n) = Suc n + sum n"
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